Abstract
Since the substitution of steroids and antimalarials for irradiation in the treatment of discoid lupus erythematosus, squamous cell carcinoma arising in discoid lupus erythematosus is thought by some to be an uncommon occurrence. A review of the recent literature (subsequent to 1945) revealed fifteen cases, of which seven occurred in the lips. In one of twelve of the cases a history of irradiation was documented. In three other cases, there was no evidence of its use. We report an additional case of squamous cell carcinoma occurring in the lower lip of a 24-year-old black woman in the absence of radiation therapy. A review of the literature and a discussion of possible predisposing factors are presented.
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